Find mass concentration of a mono-dispersed aerosol
Calculate the mass concentration, in (micro)g/m3, of a mono-dispersed aerosol with dp = 10.0 micron, (rho)p = 2.1 g cm^-3, and N = 9.55 cm^-3. Assume that the particles are spherical. Ans. 10,500 (micro)g/m^3.
Expected delivery within 24 Hours
Two wheels of mass m and moment of inertia I are connected by a massless axle of length L. The system rests on a frictionless surface and the wheels rotate without frequency ω around the axle.
A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 270 kV. What is its final velocity?
Also assume that all heat rejection processes are to a low temperature reservoir with a temperature of 300 K. Using the properties of air at 300 K, find the peak temperature of the cycle.
The electric potential at the center of a square is -3 V when a charge of -Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of +Q are placed at the other three corners of the s
Calculate the mass concentration, in (micro)g/m3, of a mono-dispersed aerosol with dp = 10.0 micron, (rho)p = 2.1 g cm^-3, and N = 9.55 cm^-3.
On a smoggy day in a certain city the ozone concentration was0.50 ppm by volume. Calculate the partial pressure of ozone and the number of ozone molecules per liter ofair if the temperature and pressure were 20.0°C and738 mmHg, respectively.
Two identical point charges of q = +1.25 x 10-8 C are separated by a distance of 0.90 m. What is the minimum amount of work required by an external force to move them closer together so that they are only 0.65 m apart?
Estimate the average electrical drift velocity in cm/s for a flat plate ESP with a total collector area equal to 10,000 m^2, and a flow rate of 500,000 m^3/h.
A proposed automobile battery involves the reaction of Zn(s) andCl2(g) to give ZnCl2. If you want such a battery to operate for 12hours and deliver 1.5 A of current, what is the minimum mass of Zinc that the anode must contain?
1955851
Questions Asked
3,689
Active Tutors
1436003
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Which response would the nurse provide the parent of an 8-month-old infant who is concerned that the baby cannot walk, but is able to sit without support?
Calculate the payment for an excision of a 2.0 cm malignant lesion.
Ms. Chang, a nurse at a nursing facility, is working an extended shift because the nurse who was to relieve her recently quit and no one else
What are the key distinctions between informed consent, implied consent, and express consent in healthcare settings?
What is the primary reason that a person living in the U.S. would not have health insurance.
An 82-year-old man is being evaluated in the intensive care unit. He was admitted following an emergency aortic aneurysm repair 5 days ago.
A 35-year-old man is brought to the ED by his roommate after he was found lying unconscious in his apartment, which he heats with a wood-pellet stove